April Mejia, right, is comforted at the scene as Pomona police investigate the scene of an alleged murder-suicide in the 2100 block of north Ramsey Way in Pomona on Friday. Police say the boyfriend of Mejia’s sister killed the sister, her brother and her mother and then himself.

Home on the 2100 block of Ramsey Way in Pomona where police say a man killed his girlfriend and her family before killing himself.

POMONA >> A Pomona man shot and killed his live-in girlfriend, her brother and mother late Thursday before turning the gun on himself, police said Friday.

Police said the 28-year-old man grabbed a handgun after getting into a dispute with his girlfriend.

“Basically, he went from room to room and killed everyone,” said Pomona police Lt. Mike Keltner.

Police received a call at 10:52 p.m. Thursday from a relative of the alleged shooter.

“The suspect told a family member that he was going to hurt himself and everyone else in the house,” said Pomona police Lt. Ronald McDonald.

When police arrived at the home in the 2100 block of Ramsey Way, they found the bodies of the 28-year-old alleged shooter, his 25-year-old girlfriend, as well as his girlfriend’s 52-year-old mother and 17-year-old brother.

They have not been officially identified, but friends and relatives identified the 52-year-old woman as Manuela “Nelli” Padilla and her 17-year-old son as Juan “Johnny” Padilla. The shooter’s girlfriend was Mariana Padilla, her sister April Mejia said. Mejia said the shooter’s name was Raul, but she was unsure of his last name.

Dozens of neighbors, relatives and friends gathered outside the yellow crime scene tape as investigators and detectives examined the scene.

Some neighbors said they didn’t even realize there had been a shooting until they turned on the news or stepped outside their homes early Friday.

“There’s a lot of shootings in this area, but nothing this close to home,” said Carmen Rodriguez.

As the sun began to set Friday, people who knew members of the family and residents in the area began to arrive, many bringing flowers or candles to set near the brick wall in front of the house.

More than 50 students gathered with Lillies, white balloons and candles at 8 p.m. Many crying and hugging each other.

“I can’t talk about this right now,” said Enrique Saldana, who was a classmate of Juan Padilla. “I can’t handle it.”

Dorothea Clauson, a Bible study teacher for elementary schools in the area, clutched a thin leather book to her chest.

“Do you see this?” she asked, holding up the book.

Inside, in Juan Padilla’s handwriting, was his name and “5-2-14” scrawled into a chapter of the book labeled “Souls Won for Christ”

Just the previous week, Clauson had met him because her godson was best friends with Mariana Padilla.

“It’s got to stop!” Clauson wailed while praying with her hands on the fence. “These are our babies!”

Santiago Villapudua, 54 from Corona, was previously married to Manuela Padilla and described her as a “hardworking single mom” who loved to travel and spend time with her children, and said that both she and her daughter were “hustlers.”

“Nothing would set them back,” he said. “I’m in shock. This is going to affect the rest of my life. How could you not have somebody who was like this in your life?”

He spoke fondly of Juan Padilla, saying he was a “smart, bright kid” who was “going places and wanted to go to college.”

Villapudua said the suspect had threatened Mariana before but never carried it out.

“He was a bum,” he said.

Mary Luna, 45, of Pomona said her son, Daniel, had been friends with Juan Padilla since the third grade.

They attended Palomares Academy in Pomona, and were part of a group of friends who took ceramics classes at the Fairplex twice a week.

“I’m just beside myself,” Luna said. “I can’t believe it.”

Luna’s other son, Ceasar Luna, said Juan came over to visit Daniel Luna a couple weeks ago and stayed late. He planned to walk home, but Luna gave him a ride instead.

“Never did I suspect it would be the last time I’d see him,” he said.

Fernando Zavala, a senior at Palomares Academy, said he and Juan Padilla had been classmates this academic year and in the past.

“He was really outgoing and he loved technology,” Zavala said.

The high school junior would keep to himself at times but he also had a sense of humor.

“He always cracked jokes,” Zavala said.

Zavala said on his way to school Friday morning he passed his classmates home and saw the police activity there but didn’t realize whose house it was until sometime after he got to school and learned what had happened.

Zavala realized something was wrong shortly after he reached campus.

“Some teachers were in a depressed mood,” he said.

Eventually Zavala learned his classmate’s death was what had brought sadness to campus and filled it for the better part of the school day.

Toward the end of the day students who knew Juan Padilla began talking and saying their friend and classmate wouldn’t want them to be sad.

“He always liked to lighten the mood with jokes” and tried to bring happiness to his surroundings, Zavala said.

“I wish I could have spent more time with him and had gotten to know him better,” he said.

Mary Luna said Juan’s mother was a pastry chef and would travel to restaurants to train employees. She also baked cakes for friends, and had promised to bake a cake for Luna for Mother’s Day.

Mejia said Manuela Padilla worked for a bakery distributor called Puratos, a New Jersey-based company.

“She was a hard worker and would do anything for her children,” Mejia said.

Mariana Padilla worked at the bakery at El Super in Pomona.

“My sister was a strong young lady and was starting off following in her mom’s footsteps,” Mejia said.

Mary Luna didn’t know much about the shooter but her son did mention him on occasion.

“He would say he was just a little weird,” she said. She didn’t ask her son to elaborate on that statement.

Ceasar Luna described him as a distant person.

Delon Johnson, 39, who lives near the family, said he occasionally talked to the alleged shooter when they ran into each other at the nearby donut shop or at 7-Eleven.

They discussed sports and politics, but not much about their families. Johnson said he couldn’t believe that the man could be responsible for a murder-suicide.

“It’s mind-blowing. It’s unimaginable,” Johnson said. “You never know what a person’s going through on the inside.”

Mejia also said she didn’t know much about her sister’s boyfriend, but said he was in love with her sister. Her sister did mention once that she wanted to leave him.